tsconfig.json

{
  // Note that while we use TypeScript to type the codebase (GDJS game engine
  // and extension), we use esbuild to compile from TypeScript to JavaScript almost instantly.
  // See `GDJS/scripts/build.js`.
  "compilerOptions": {
    "noEmit": true,
    "allowJs": true,
    "noImplicitReturns": true,
    "noUnusedLocals": true,
    "noFallthroughCasesInSwitch": true,
    "strictNullChecks": true,
    "strictFunctionTypes": true,
    "strictPropertyInitialization": true,
    "skipLibCheck": true,
    // Not used (as we don't compile with tsc), but necessary for iterating on Map/Set.
    "downlevelIteration": true,
    // Required by PixiJS, for importing 3rd-party dependencies like EventEmitter3.
    "esModuleInterop": true,
    // Required by PixiJS, loaders needs this to use the more strict mini-signal types.
    "paths": {
      "mini-signals": [
        "GDJS/node_modules/resource-loader/typings/mini-signals.d.ts"
      ]
    },
    "baseUrl": "./",
    "lib": ["DOM", "ES5", "ScriptHost", "ES2015.Iterable", "ES2015.Promise"],
    "typeRoots": ["GDJS/node_modules/@types/"],
    // JSX syntax for lightweight rendering in the game engine:
    "jsx": "react",
    "jsxFactory": "h",
    "jsxFragmentFactory": "Fragment"
  },
  "include": [
    "GDevelop.js/types.d.ts",
    "GDJS/Runtime/**/*",
    "Extensions/**/*.js",
    "Extensions/**/*.ts",
    "GDJS/tests/tests/**/*.js",
    "GDJS/tests/tests-utils/**/*.js",
    "GDJS/tests/benchmarks/**/*.js"
  ],
  // Exclude pre-built js code
  "exclude": [
    "GDJS/Runtime/pixi-renderers/pixi.js",
    "GDJS/Runtime/Cordova",
    "GDJS/Runtime/Electron",
    "GDJS/Runtime/FacebookInstantGames",
    "GDJS/Runtime/libs/CocoonJS",
    "Extensions/Effects/pixi-filters/filter-alpha.js",
    "SharedLibs/TileMapHelper/**/*",
    "Extensions/Spine/pixi-spine/pixi-spine.js",
    "Extensions/P2P/A_peer.js",
    "Extensions/Multiplayer/peer.js"
  ]
}